Regulations on the Brazilian industry include: mandatory use of condoms in penetration scenes; all actors in pornographic films must be 18 or older; regular pornography (not involving bestiality/snuff) is legal when sold in public places; magazine and DVD covers that depict genitalia must be hidden from public view; and pornography can only be sold to people 18 or older. In the last 10 until 15 years, numerous American and European actors such as Rocco Siffredi, Nacho Vidal, and John Stagliano have visited Brazil to produce movies which, like most American pornographic productions, are shot without condoms (contrary to native laws requiring them). Brazil is also well known for gay and transsexual pornography. In Brazil, pornographic film actors must be 18 or older. Pornography which does not involve bestiality is legal when sold in public places. Depiction of sex with animals is legal. However, magazine and DVD covers that depict genitalia must not be visible from public view, and pornography can only be sold to people 18 or older.